Glucose measures the sugar in your blood, helping gauge energy balance and diabetes risk.
Glucose is the main sugar in your blood and your body's primary fuel. This test measures fasting plasma glucose, your blood sugar after not eating for at least eight hours.
Insulin keeps glucose in a tight range. A fasting sample removes the effect of recent meals, giving a clean look at how well your body controls blood sugar.
A high fasting glucose is a core sign of prediabetes and type 2 diabetes. Caught early, raised blood sugar can often be improved with diet, weight, and activity changes before it causes harm.
A low fasting glucose (hypoglycaemia) is less common and can cause shakiness, sweating, and confusion. It may relate to diabetes medication, fasting, or, rarely, other conditions.
Aniva reads your result against research-backed ranges, not just the lab's wide normal. The reference shown below is specific to this biomarker.
| Category | Fasting plasma glucose (SI) |
| Normal | below 5.6 mmol/L |
| Impaired (prediabetes) | 5.6 to 6.9 mmol/L |
| Diabetes | 7.0 mmol/L or above |
Ranges follow WHO criteria used in Germany; some bodies set the impaired threshold at 6.1 mmol/L. To convert, 1 mmol/L is about 18 mg/dL. A diabetes result is confirmed with a repeat test. Read against your own lab's interval.
You must fast for at least eight hours, since recent food raises the result. Stress, acute illness, and some medicines (steroids, certain diuretics) raise glucose. If blood sits too long before processing without a preservative tube, the value falls. Time of draw and fasting state matter.
Read alongside HbA1c, and with an oral glucose tolerance test or fasting insulin when diabetes or insulin resistance is being assessed.
What does a glucose test show? It shows how much sugar is in your blood at the time of the draw. Higher or lower levels guide whether follow-up testing is needed.
Do I need to fast for this test? Not always. Fasting is needed only when your clinician orders a fasting glucose or an oral glucose tolerance test.
What can affect my result? Recent food, alcohol, hard exercise, stress, illness, and medicines like steroids, insulin, or sulfonylureas can shift levels.
How often should I test? Many adults check during routine health visits. If you have risk factors or known glucose issues, your clinician may suggest more frequent checks.
How long do results take? Results are usually ready in about 7 days.
What should I discuss with my clinician? Share symptoms, your medication list, recent illness, and family history. Ask whether to repeat fasting, add HbA1c, or do an oral glucose tolerance test.
One annual membership, 100+ biomarkers, every result explained in plain language with a personalized action plan and concierge guidance.
